The 29-year-old singer was given a ginger and white feline for one day as a way of cheering her up as she was missing her pet moggy, Kitty Purry, who was at home in California, while she was filming at Stratford Old Town Hall in east London last week.

A source told the Daily Mirror newspaper: ''Katy is a cat fanatic. She absolutely adores them.

''She was talking about them a lot on the set and finally asked her management if they could find her one.

''During filming, there are always lots of breaks and, at times, Katy looked really bored and she was saying she had nothing to do.

''It didn't take long before a kitten was found and brought on set. And Katy happily played with it for about half an hour.''

The source added: ''When Katy finished playing with the puss everyone was cooing over it. One of the dancers expressed an interest in giving it a home but no one is sure if the offer was taken up.''

A spokesman for the 'Roar' hitmaker admitted Katy named the cat Prism after her new album, but has since flown back to the US leaving her fury friend behind.